Universal Bathroom Sink Stopper：WEAQALD sink stopper is new design for 99% of US standard bathroom sink drain holes, inner diameter size 1.01"-1.96" will be ok. Widely fits for basin, bathroom sink drains and shower bathtub drains, good choice to replace your old, rusty bathtub stoppers. Easy to Install: Just take out old sink stopper and insert this new one to complete the install. Thickened and extended nut of the sink drain strainer allows it could be installed by hand, without any hurting hands, even no need tools, anyone can finish it. High-quality Material: WEAQALD sink drain stopper is made of quality stainless steel and brass materials, anti-rust, anti-cracking, integral molding. Good bounce and rebound strength, quickly seal and drain water with a single press. Build-in Strainer Include: Unlike regular push-button drain, our bathroom sink drain strainer has an anti-clogging basket inside that neatly collecting hairs and prevents the drain from clogging up, stop stuff getting into the drain, such as jewelry, ring, dirt, etc. Convenient Use: Pop-up design overturns the traditional, inconvenient bathroom sink strainer. Just press the top cap down gently to switch 2 modes – stopper (to keep the water) and strainer (to drain off the water).